=pod

=head1 NAME

ossl_cmp_certreq_new,
ossl_cmp_certrep_new,
ossl_cmp_rr_new,
ossl_cmp_rp_new,
ossl_cmp_certConf_new,
ossl_cmp_pkiconf_new,
ossl_cmp_pollReq_new,
ossl_cmp_pollRep_new,
ossl_cmp_genm_new,
ossl_cmp_genp_new,
ossl_cmp_error_new
- functions for generating CMP messages

=head1 SYNOPSIS

 #include <openssl/cmp.h>

# define OSSL_CMP_PKIBODY_IR        0
# define OSSL_CMP_PKIBODY_IP        1
# define OSSL_CMP_PKIBODY_CR        2
# define OSSL_CMP_PKIBODY_CP        3
# define OSSL_CMP_PKIBODY_P10CR     4
# define OSSL_CMP_PKIBODY_POPDECC   5
# define OSSL_CMP_PKIBODY_POPDECR   6
# define OSSL_CMP_PKIBODY_KUR       7
# define OSSL_CMP_PKIBODY_KUP       8
# define OSSL_CMP_PKIBODY_KRR       9
# define OSSL_CMP_PKIBODY_KRP      10
# define OSSL_CMP_PKIBODY_RR       11
# define OSSL_CMP_PKIBODY_RP       12
# define OSSL_CMP_PKIBODY_CCR      13
# define OSSL_CMP_PKIBODY_CCP      14
# define OSSL_CMP_PKIBODY_CKUANN   15
# define OSSL_CMP_PKIBODY_CANN     16
# define OSSL_CMP_PKIBODY_RANN     17
# define OSSL_CMP_PKIBODY_CRLANN   18
# define OSSL_CMP_PKIBODY_PKICONF  19
# define OSSL_CMP_PKIBODY_NESTED   20
# define OSSL_CMP_PKIBODY_GENM     21
# define OSSL_CMP_PKIBODY_GENP     22
# define OSSL_CMP_PKIBODY_ERROR    23
# define OSSL_CMP_PKIBODY_CERTCONF 24
# define OSSL_CMP_PKIBODY_POLLREQ  25
# define OSSL_CMP_PKIBODY_POLLREP  26

 OSSL_ossl_cmp_MSG *ossl_cmp_certreq_new(OSSL_CMP_CTX *ctx, int bodytype,
                                         const OSSL_CRMF_MSG *crm);
 OSSL_CMP_MSG *ossl_cmp_certrep_new(OSSL_CMP_CTX *ctx, int bodytype,
                                    int certReqId, OSSL_CMP_PKISI *si,
                                    X509 *cert, STACK_OF(X509) *chain,
                                    STACK_OF(X509) *caPubs,
                                    int encrypted, int unprotectedErrors);
 OSSL_CMP_MSG *ossl_cmp_rr_new(OSSL_CMP_CTX *ctx);
 OSSL_CMP_MSG *ossl_cmp_rp_new(OSSL_CMP_CTX *ctx, OSSL_CMP_PKISI *si,
                               OSSL_CRMF_CERTID *cid, int unprot_err);
 OSSL_CMP_MSG *ossl_cmp_certConf_new(OSSL_CMP_CTX *ctx, int fail_info,
                                     const char *text);
 OSSL_CMP_MSG *ossl_cmp_pkiconf_new(OSSL_CMP_CTX *ctx);
 OSSL_CMP_MSG *ossl_cmp_pollReq_new(OSSL_CMP_CTX *ctx, int crid);
 OSSL_CMP_MSG *ossl_cmp_pollRep_new(OSSL_CMP_CTX *ctx, int crid, int poll_after);
 OSSL_CMP_MSG *ossl_cmp_genm_new(OSSL_CMP_CTX *ctx);
 OSSL_CMP_MSG *ossl_cmp_genp_new(OSSL_CMP_CTX *ctx);
 OSSL_CMP_MSG *ossl_cmp_error_new(OSSL_CMP_CTX *ctx, OSSL_CMP_PKISI *si,
                                  int errorCode,
                                  OSSL_CMP_PKIFREETEXT *errorDetails,
                                  int unprotected);

=head1 DESCRIPTION

This is the API for creating various CMP PKIMESSAGES. The
functions allocate a new message, fill it with the relevant data derived from
the given OSSL_CMP_CTX, and create the applicable protection.

ossl_cmp_certreq_new() creates a PKIMessage for requesting a certificate,
which can be either of IR/CR/KUR/P10CR, depending on the given B<bodytype>.
The CRMF message to use may be given via the B<crm> argument;
else (if B<crm> is NULL) it is created from the information in the B<ctx>.

Available CMP certificate request PKIMessage B<bodytype>s are:

=over 4

=item * B<OSSL_CMP_PKIBODY_IR>    - Initialization Request

=item * B<OSSL_CMP_PKIBODY_CR>    - Certification Request

=item * B<OSSL_CMP_PKIBODY_P10CR> - PKCS#10 Certification Request

=item * B<OSSL_CMP_PKIBODY_KUR>   - Key Update Request

=back

ossl_cmp_certrep_new() creates a PKIMessage for certificate response, which can
be either of IP/CP/KUP, depending on the given B<bodytype>.

Available CMP certificate response PKIMessage B<bodytype>s are:

=over 4

=item * B<OSSL_CMP_PKIBODY_IP>    - Initialization Response

=item * B<OSSL_CMP_PKIBODY_CP>    - Certification Response

=item * B<OSSL_CMP_PKIBODY_KUP>   - Key Update Response

=back

The list of all CMP PKIMessage B<bodytype>s is:

 #define OSSL_CMP_PKIBODY_IR        0
 #define OSSL_CMP_PKIBODY_IP        1
 #define OSSL_CMP_PKIBODY_CR        2
 #define OSSL_CMP_PKIBODY_CP        3
 #define OSSL_CMP_PKIBODY_P10CR     4
 #define OSSL_CMP_PKIBODY_POPDECC   5
 #define OSSL_CMP_PKIBODY_POPDECR   6
 #define OSSL_CMP_PKIBODY_KRR       9
 #define OSSL_CMP_PKIBODY_KRP      10
 #define OSSL_CMP_PKIBODY_RR       11
 #define OSSL_CMP_PKIBODY_RP       12
 #define OSSL_CMP_PKIBODY_CCR      13
 #define OSSL_CMP_PKIBODY_CCP      14
 #define OSSL_CMP_PKIBODY_CKUANN   15
 #define OSSL_CMP_PKIBODY_CANN     16
 #define OSSL_CMP_PKIBODY_RANN     17
 #define OSSL_CMP_PKIBODY_CRLANN   18
 #define OSSL_CMP_PKIBODY_PKICONF  19
 #define OSSL_CMP_PKIBODY_NESTED   20
 #define OSSL_CMP_PKIBODY_GENM     21
 #define OSSL_CMP_PKIBODY_GENP     22
 #define OSSL_CMP_PKIBODY_ERROR    23
 #define OSSL_CMP_PKIBODY_CERTCONF 24
 #define OSSL_CMP_PKIBODY_POLLREQ  25
 #define OSSL_CMP_PKIBODY_POLLREP  26

ossl_cmp_rr_new() creates a Revocation Request message from the
information set via OSSL_CMP_CTX_set1_oldClCert().

ossl_cmp_rp_new() creates a Revocation Response message with status set to
B<si> and CertID set to B<cid>. Consumes B<cid>.
Accepts unprotected errors if B<uprot_err> != 0.

ossl_cmp_certConf_new() creates a Certificate Confirmation message for the last
received certificate. PKIStatus defaults to B<accepted> if the B<fail_info> bit
field is 0. Else it is taken as the failInfo of the PKIStatusInfo, PKIStatus is
set to B<rejected>, and B<text> is copied to statusString unless it is NULL.

ossl_cmp_pkiconf_new() creates a PKI Confirmation message.

ossl_cmp_pollReq_new() creates a Polling Request message with certReqId set to
B<crid>.

ossl_cmp_pollRep_new() creates a Polling Response message with certReqId set to
B<crid> and pollAfter to B<poll_after>.

ossl_cmp_genm_new() creates a new General Message with an empty ITAV stack.

ossl_cmp_genp_new() creates a new General Response with an empty ITAV stack.

ossl_cmp_error_new() creates a new Error Message with the given contents,
copying B<si> and B<errorDetails>.

=head1 NOTES

CMP is specified in RFC 4210 (and CRMF in RFC 4211).

=head1 RETURN VALUES

All of the functions return a new OSSL_CMP_MSG structure containing
the generated message on success, or NULL on error.

=head1 SEE ALSO

L<OSSL_CMP_CTX_new(3)>, L<ERR_load_strings(3)>

=head1 HISTORY

The OpenSSL CMP support was added in OpenSSL 3.0.

=head1 COPYRIGHT

Copyright 2007-2020 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.

=cut